Average Co-Inventor Count = 4.83
ph-index = 4
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Hitachi, Ltd. (4 from 42,485 patents)
2. Nkk Corporation (2 from 614 patents)
3. Nippon Kokan Kabushiki Kaisha (2 from 487 patents)
4. Mitsubishi Jukogyo Kabushiki Kaisha (1 from 1,326 patents)
5. Isuzu Motors Limited (1 from 1,216 patents)
6. Central Glass Company, Limited (1 from 1,000 patents)
10 patents:
1. 10696292 - Hybrid vehicle
2. 9845453 - Cell culture apparatus and cell culture method
3. 5411605 - Soft magnetic steel material having excellent DC magnetization
4. 5244513 - Fe-Cr-Ni-Si shape memory alloys with excellent stress corrosion cracking
5. 5116571 - Chromoum heat-resistant steel excellent in toughness and having high
6. 4755234 - Method of manufacturing pressure vessel steel with high strength and
7. 4610910 - Printed circuit board, process for preparing the same and resist ink
8. 4523041 - Method of purifying 4-fluorophenol
9. 4324629 - Process for regenerating chemical copper plating solution
10. 4151313 - Method for production of printed circuits by electroless metal plating